Show fixed content on ion-affix hidden on ion-content

I am using ion-affix by Ali Ok ( http://www.aliok.com.tr/projects/2015-04-17-ion-affix.html ).
It works great, but i would like to accomplish something not documented, but widely used on several apps.
I would like to show a sticky div element when the content is scrolled on a point, that is not being shown on the ion-content.
Any ideas how i could do this ?
Thanks in advance.